/***************************************************************************
 *   Copyright (C) 2005 by xihe						   *
 *   xihels@163.com							   *
 *                                                                         *
 *   This program is free software; you can redistribute it and/or modify  *
 *   it under the terms of the GNU General Public License as published by  *
 *   the Free Software Foundation; either version 2 of the License, or     *
 *   (at your option) any later version.                                   *
 *                                                                         *
 *   This program is distributed in the hope that it will be useful,       *
 *   but WITHOUT ANY WARRANTY; without even the implied warranty of        *
 *   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the         *
 *   GNU General Public License for more details.                          *
 *                                                                         *
 *   You should have received a copy of the GNU General Public License     *
 *   along with this program; if not, write to the                         *
 *   Free Software Foundation, Inc.,                                       *
 *   59 Temple Place - Suite 330, Boston, MA  02111-1307, USA.             *
 ***************************************************************************/
#ifndef DYNAMIC_CREATE_MAP
#define DYNAMIC_CREATE_MAP

#include <ext/hash_map>
using __gnu_cxx::hash_map;
#include "Packet.h"
#include <stdint.h>

typedef InPacket* (*CREATE_FUN)(const uint8_t* buf, int len);
class DynamicCreateMap {
    public:
	typedef hash_map<uint32_t, CREATE_FUN> FUN_MAP;
	void registerP(uint32_t index, CREATE_FUN fun)
	{
	    funMap.insert(std::make_pair(index, (fun)));
	}

	InPacket* createP(uint32_t index, const uint8_t* buf, int len)
	{
	    FUN_MAP::iterator iter = funMap.find(index);
	    if (funMap.end() != iter)
		return (*(*iter).second)(buf, len);
	    else
		return UnknowPacket::create(buf, len);
	}
	static DynamicCreateMap& getSelf();
    private:
	DynamicCreateMap(){}
	FUN_MAP funMap;
};
#endif //DYNAMIC_CREATE_MAP

